body{
  margin: 0;
  padding: 0;
}
ul{
  list-style-type: none;
  padding: 0;
  margin: 0;
}
.container{
  width: 76%;
  margin: auto;
}
a{
  text-decoration: none;
  color: #000;
  font-size: 1em;
}
nav{
  width: 100%;
  background-color: #ddd;
  position: fixed;
  bottom: 0;
}
nav .nav{
  /*border: 1px solid red;*/
  display: inline-block;
  width: 20%;
  height: 50px;
  text-align: center;
  box-sizing: border-box;
  float: left;
  background-image: url(../img/public/index.png);
  background-repeat: no-repeat;
  background-position: top 4px center;
  background-size: 24px;
  padding-top: 30px;
  font-size: 0.9em;
  font-weight: bold;
}
nav .nav:nth-child(2){
  background-image: url(../img/public/fl.png);
}
nav .nav:nth-child(3){
  background-image: url(../img/public/ys.png);
}
nav .nav:nth-child(4){
  background-image: url(../img/public/car.png);
}
nav .nav:nth-child(5){
  background-image: url(../img/public/me.png);
}